Re: [squid-users] www.cmhc.ca site doesn't load

On Sat, Feb 16, 2008, Shoebottom, Bryan wrote:
> I thought of this because I've had this problem in the past with sites
> like hotmail. But when I configure the browser for the cache server
> itself and bypass WCCP, I have the same problem. I was hoping the
> community would be able to tell me if they have any difficulties with
> this site. Then I could begin to compare configurations.

Various people have issues with these sorts of things. Generally its because
of stuff like ECN, PMTU discovery, Window Scaling/Timestamping, etc.

Adrian

>
>
> --
> Thanks,
>
> Bryan Shoebottom CCNA
> Network & Systems Analyst
> Network Services & Computer Operations
> Fanshawe College
> Phone: (519) 452-4430 x4904
> Fax: (519) 453-3231
> BShoebottom@fanshawec.ca
>
>
> -----Original Message-----
> From: Adrian Chadd [mailto:adrian@creative.net.au]
> Sent: Friday, February 15, 2008 6:17 PM
> To: Shoebottom, Bryan
> Cc: squid-users@squid-cache.org
> Subject: Re: [squid-users] www.cmhc.ca site doesn't load
>
> Start by using a packet sniffer and see if you can determine why the
> TCP sessions are hanging.
>
> It may be WCCPv2 interception. It depends on how you've set it up to the
> Cat6k.
>
>
>
> Adrian
>
> On Fri, Feb 15, 2008, Shoebottom, Bryan wrote:
> > Hello,
> >
> > I am having problems getting to www.cmhc.ca through our cache servers.
> > We have a 2.6S4 and a 3.0S1 server running transparently with WCCPv2
> and
> > Cisco cat6k equipment. I have tried to get to the site through the
> > transparent configuration, and with each cache configured in my
> browser,
> > but the site takes a long time to come up (over 10min, I haven't
> stayed
> > around to watch) if it ever completes in any situation. If I bypass
> the
> > caches completely, I can bring up the site with no problems.
> > There are no errors in cache.log and access.log only shows an entry
> when
> > something finally loads in the browser (i.e. when the icon shows up
> > after 5min, I see the request for favicon.ico). Since the site
> doesn't
> > load when the browser is configured for a cache, WCCP shouldn't be the
> > issue.
> >
> > Can anyone replicate this or have a solution? If you need any more
> > info, please let me know.
> >
> >
> > --
> > Thanks,
> >
> > Bryan Shoebottom CCNA
> > Network & Systems Analyst
> > Network Services & Computer Operations
> > Fanshawe College
> > Phone: (519) 452-4430 x4904
> > Fax: (519) 453-3231
> > BShoebottom@fanshawec.ca
> >
>
> --
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-- 
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